The Wall Street Journal | By: David Gauthier-Villars and Michael Amon | June 27, 2017 11:03 a.m. ET:
Maersk, WPP Group and Rosneft all report significant intrusions on their computer systems.
Global businesses, including shipping giant A.P. Moeller-Maersk AMKBY 0.62% A/S, advertising firm WPP Group WPPGY -0.95% PLC and Russian oil company PAO Rosneft, reported significant cyberattacks Tuesday against their computer systems.
It was unclear how, or if, the attacks were related, but they spread simultaneously across Europe—with some early reports of affected companies in the U.S.—on the heels of a global attack in May. That virus, dubbed WannaCry, inflicted most of its damage on European businesses and institutions.
The WannaCry malware locked computer systems that were old or weren’t adequately patched, demanding ransom. The attack hit hospitals in the U.K., car factories in France and smaller businesses across the continent.
An adviser to Ukraine’s interior minister said a version of the WannaCry virus had hit government computer systems in that country on Tuesday, Reuters reported, though the government said shortly after the nation’s most critical systems were safe.
The extent of the operational disruption was unclear at the affected companies.
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